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Triss [41]
3 years ago
9

Which of these objects has kinetic energy?

Chemistry
1 answer:
pishuonlain [190]3 years ago
4 0

Answer:

The answer is this first one A.

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Which gas sample STP has the same total number of molecules at 2.0 L of CO2(g) at STP
zloy xaker [14]
<span>Answer 2 (2.0L of Cl2 (g)) is correct. Avogadro's hypothesis states that 2.0 L of Cl2 (g) occupies the same volume as 2.0 L of CO2</span>
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3 years ago
Write the net ionic equation for this precipitation reaction. Include physical states. ( NH 4 ) 2 CO 3 ( aq ) + Ca ( ClO 4 ) 2 (
Bad White [126]

Answer:

The net ionic equation:

Ca^{2+}(aq)+CO_{3}^{2-}(aq) \rightarrow CaCO_{3}(s)

Explanation:

The given chemical reaction is as follows.

(NH_{4})_{2}CO_{3}(aq)+Ca(ClO_{4})_{2}(aq) \rightarrow CaCO_{3}(s)+2NH_{4}ClO_{4}(aq)

The total ionic equation is as follows.

2NH_{4}^{+}(aq)+ CO_{3}^{2-}(aq)+Ca^{2+}(aq)+2ClO_{4}^{-}(aq) \rightarrow CaCO_{3}(s)+2NH_{4}^{+}(aq)+2ClO_{4}^{-}

Similar ions on the both sides of the reaction will be cancelled.

The remaining reaction is

Ca^{2+}(aq)+CO_{3}^{2-}(aq) \rightarrow CaCO_{3}(s)

Therefore, the net ionic reaction is as follows.

Ca^{2+}(aq)+CO_{3}^{2-}(aq) \rightarrow CaCO_{3}(s)

8 0
4 years ago
El osmio es un metal sólido que tiene una densidad
pentagon [3]

Respuesta:

4.42 × 10⁻⁶ m³

Explicación:

Paso 1: Información provista

  • Densidad del osmio (ρ): 22600 kg/m³
  • Masa de osmio (m): 100 g

Paso 2: Convertir 100 g a kilogramos

Usaremos el factor de conversion 1 kg = 1000 g.

100 g × 1 kg/1000 g = 0.100 kg

Paso 3: Calcular el volumen ocupado por 0.100 kg de osmio

La densidad es una propiedad intensiva, igual al cociente entre la masa y el volumen.

ρ = m/V

V = m/ρ

V = 0.100 kg / (22600 kg/m³) = 4.42 × 10⁻⁶ m³

5 0
3 years ago
Why does salt dissolve in water?
tigry1 [53]
The water dissolves the salt because the water molecules are able to interact with the salt-forming particles, called ions. When the water Interacts with the trainers of the salt ions, the solid salt crystal structure Suffers breakdown, until the trainers of the salt ions are completely surrounded by water molecules. At this time the salt is fully dissolved by water.

hope this helps!
4 0
3 years ago
4. Some characteristic types of wind result where global pressure belts meet. Which of the following is a zone of weak, variable
PIT_PIT [208]

Answer:

local winds

Explanation:

4 0
3 years ago
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